ARM: sun8i: bananapi-m2-plus: Enable dwmac-sun8i

The dwmac-sun8i hardware is present on the Banana Pi M2+
It uses an external PHY rtl8211e via RGMII.

This patch create the needed regulator, emac and phy nodes.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
index 52acbe111cade5aa6c81c71d079df731c9f03d8d..fef652b883fb951041dc39a565e21edeabbc63eb 100644 (file)
--- a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
@@ -52,6 +52,7 @@
        compatible = "sinovoip,bpi-m2-plus", "allwinner,sun8i-h3";
 
        aliases {
+               ethernet0 = &emac;
                serial0 = &uart0;
                serial1 = &uart1;
        };
@@ -84,6 +85,16 @@
                };
        };
 
+       reg_gmac_3v3: gmac-3v3 {
+                     compatible = "regulator-fixed";
+                     regulator-name = "gmac-3v3";
+                     regulator-min-microvolt = <3300000>;
+                     regulator-max-microvolt = <3300000>;
+                     startup-delay-us = <100000>;
+                     enable-active-high;
+                     gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+       };
+
        wifi_pwrseq: wifi_pwrseq {
                compatible = "mmc-pwrseq-simple";
                pinctrl-names = "default";
@@ -100,12 +111,30 @@
        status = "okay";
 };
 
+&emac {
+       pinctrl-names = "default";
+       pinctrl-0 = <&emac_rgmii_pins>;
+       phy-supply = <&reg_gmac_3v3>;
+       phy-handle = <&ext_rgmii_phy>;
+       phy-mode = "rgmii";
+
+       allwinner,leds-active-low;
+       status = "okay";
+};
+
 &ir {
        pinctrl-names = "default";
        pinctrl-0 = <&ir_pins_a>;
        status = "okay";
 };
 
+&mdio {
+       ext_rgmii_phy: ethernet-phy@1 {
+               compatible = "ethernet-phy-ieee802.3-c22";
+               reg = <0>;
+       };
+};
+
 &mmc0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;